CVE-2023-52791
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
i2c: core: Run atomic i2c xfer when !preemptible
In the Linux kernel, the following vulnerability has been resolved: i2c: core: Run atomic i2c xfer when !preemptible Since bae1d3a05a8b, i2c transfers are non-atomic if preemption is disabled. However, non-atomic i2c transfers require preemption (e.g. in wait_for_completion() while waiting for the DMA). panic() calls preempt_disable_notrace() before calling emergency_restart(). Therefore, if an i2c device is used for the restart, the xfer should be atomic. This avoids warnings like: [ 12.667612] WARNING: CPU: 1 PID: 1 at kernel/rcu/tree_plugin.h:318 rcu_note_context_switch+0x33c/0x6b0 [ 12.676926] Voluntary context switch within RCU read-side critical section! ... [ 12.742376] schedule_timeout from wait_for_completion_timeout+0x90/0x114 [ 12.749179] wait_for_completion_timeout from tegra_i2c_wait_completion+0x40/0x70 ... [ 12.994527] atomic_notifier_call_chain from machine_restart+0x34/0x58 [ 13.001050] machine_restart from panic+0x2a8/0x32c Use !preemptible() instead, which is basically the same check as pre-v5.2.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | 25eb381a736e7ae39a4245ef5c96484eb1073809 | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | 25284c46b657f48c0f3880a2e0706c70d81182c0 | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | f6237afabc349c1c7909db00e15d2816519e0d2b | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | 185f3617adc8fe45e40489b458f03911f0dec46c | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | 8c3fa52a46ff4d208cefb1a462ec94e0043a91e1 | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | 3473cf43b9068b9dfef2f545f833f33c6a544b91 | Unavailable | None listed |
| bae1d3a05a8b99bd748168bbf8155a1d047c562e | affected | git | aa49c90894d06e18a1ee7c095edbd2f37c232d02 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.2 | Unavailable | None listed |
| 5.4.262 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.202 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.140 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.64 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.5.13 | unaffected | semver | Unavailable | 6.5.* | None listed |
| 6.6.3 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7 | unaffected | original_commit_for_fix | Unavailable | * | None listed |